El Promontorio

Past Producer in Sonora, Mexico with commodity Antimony
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10049199
MRDS ID MX00453
Record type Site
Current site name El Promontorio
Related records 10230434

Geographic coordinates

Geographic coordinates: -112.58989, 30.72987 (WGS84)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Sonora

Comments on the location information

  • ESTIMATE TO WITHIN 0.5 KM.

Commodities

Commodity Importance
Antimony Critical Primary

Materials information

Materials Type of material
Quartz Gangue

Alteration

  • (Local) Wall Rock Adjacent To Ore Bodies Bleached From Red To White For A Distance Of Up To 30 Cm From The Vein.

Mineral occurrence model information

Model code 180
USGS model code 27d
Deposit model name Simple Sb (veins, pods, etc)

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Stratigraphic age (youngest) Late Triassic

Nearby scientific data

(1) -112.58989, 30.72987

Economic information

Ore body information

  • Strike N 40-85 E
    Dip 2-45 S

Controls for ore emplacement

  • Best Ore Found Where Vein Strikes About N 70 E And Has Low Dip.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name El Antimonio/La Montana

Production statistics

  • Year 1943
    Period -1943
    Material ORE SB
    Accuracy Estimate
    Description Cp_Grade: ^40% Sb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Antimony Antimony 40wt-pct

Comments on the production information

  • TOTAL PAST PRODUCTION (AS OF 1943) PROBABLY ABOUT 300 TONS OF SHIPPING ORE. SHIPPING ORE REPORTED ELSEWHERE IN THE DISTRICT AS MATERIAL CONTAINING AT LEAST 40% SB.

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 17M

Comments on the workings information

  • SOUTHERN VEIN MINED OUT TO DEPTH OF 12 M FROM TWO LEVELS AT DEPTHS OF 11 AND 17 M. A LITTLE ORE FOUND AT THE SURFACE OF BOTH VEINS.

Reference information

Bibliographic references

  • Deposit

    WHITE, D.E. AND GUIZA, REINALDO, 1949, ANTIMONY DEPOSITS OF EL ANTIMONIO DISTRICT, SONORA, MEXICO: U.S. GEOLOGICAL SURVEY BULLETIN 962-B, P.108, PLATES 15, 23

  • Production

    WHITE AND GUIZA, 1949.

General comments

Subject category Comment text
Deposit TWO SUBPARALLEL VEINS, EACH ABOUT 60 M LONG. VEINS STRIKE N 40-85 E AND DIP 2-45 S. DIP OF SOUTHERN VEIN FLATTENS TO NEAR HORIZONTAL AT DEPTH OF 10 M, WHERE LARGE AMOUNT OF ORE WAS FOUND IN SECTION OF THE VEIN 2.4 M THICK. SOUTHWARD, THE DIP INCREASES TO 20 DEGREES. BEST ORE FOUND WHERE THE VEIN HAS A LOW DIP AND A STRIKE OF ABOUT N 70 E. VEIN NARROW AND BARREN NEAR EASTERN TERMINUS, WHERE DIP STEEPENS AND STRIKE SWINGS TO N 30 E.
Deposit ORE CONTROLS SIMILAR TO LA LIMENA MINE. ; INFO.SRC : 1 PUB

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1987 Leonard, Kenneth R. (Page, Norman J.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.